(function () {
  var canvas = $('#canvas');

  if (!canvas[0].getContext) {
      $("#error").show();
      return false;
  }

  var width = canvas.width();
  var height = canvas.height();
  canvas.attr("width", width);
  canvas.attr("height", height);
  var opts = {
      seed: {
          x: width / 2 - 20,
          color: "rgb(190, 26, 37)",
          scale: 2
      },
      branch: [
          [535, 680, 570, 250, 500, 200, 30, 100, [
              [540, 500, 455, 417, 340, 400, 13, 100, [
                  [450, 435, 434, 430, 394, 395, 2, 40]
              ]],
              [550, 445, 600, 356, 680, 345, 12, 100, [
                  [578, 400, 648, 409, 661, 426, 3, 80]
              ]],
              [539, 281, 537, 248, 534, 217, 3, 40],
              [546, 397, 413, 247, 328, 244, 9, 80, [
                  [427, 286, 383, 253, 371, 205, 2, 40],
                  [498, 345, 435, 315, 395, 330, 4, 60]
              ]],
              [546, 357, 608, 252, 678, 221, 6, 100, [
                  [590, 293, 646, 277, 648, 271, 2, 80]
              ]]
          ]]
      ],
      bloom: {
          num: 700,
          width: 1080,
          height: 650,
      },
      footer: {
          width: 1200,
          height: 5,
          speed: 10,
      }
  }

  var tree = new Tree(canvas[0], width, height, opts);
  var seed = tree.seed;
  var foot = tree.footer;
  var hold = 1;

  canvas.click(function (e) {
      var offset = canvas.offset(), x, y;
      x = e.pageX - offset.left;
      y = e.pageY - offset.top;
      if (seed.hover(x, y)) {
          hold = 0;
          canvas.unbind("click");
          canvas.unbind("mousemove");
          canvas.removeClass('hand');
      }
  }).mousemove(function (e) {
      var offset = canvas.offset(), x, y;
      x = e.pageX - offset.left;
      y = e.pageY - offset.top;
      canvas.toggleClass('hand', seed.hover(x, y));
  });

  var seedAnimate = eval(Jscex.compile("async", function () {
      seed.draw();
      while (hold) {
          $await(Jscex.Async.sleep(10));
      }
      while (seed.canScale()) {
          seed.scale(0.95);
          $await(Jscex.Async.sleep(10));
      }
      while (seed.canMove()) {
          seed.move(0, 2);
          foot.draw();
          $await(Jscex.Async.sleep(10));
      }
  }));

  var growAnimate = eval(Jscex.compile("async", function () {
      do {
          tree.grow();
          $await(Jscex.Async.sleep(10));
      } while (tree.canGrow());
  }));

  var flowAnimate = eval(Jscex.compile("async", function () {
      do {
          tree.flower(2);
          $await(Jscex.Async.sleep(10));
      } while (tree.canFlower());
  }));

  var moveAnimate = eval(Jscex.compile("async", function () {
      tree.snapshot("p1", 240, 0, 610, 680);
      while (tree.move("p1", 500, 0)) {
          foot.draw();
          $await(Jscex.Async.sleep(10));
      }
      foot.draw();
      tree.snapshot("p2", 500, 0, 610, 680);

      // 会有闪烁不得意这样做, (＞﹏＜)
      canvas.parent().css("background", "url(" + tree.toDataURL('image/png') + ")");
      canvas.css("background", "#ffe");
      $await(Jscex.Async.sleep(300));
      canvas.css("background", "none");
  }));

  var jumpAnimate = eval(Jscex.compile("async", function () {
      var ctx = tree.ctx;
      while (true) {
          tree.ctx.clearRect(0, 0, width, height);
          tree.jump();
          foot.draw();
          $await(Jscex.Async.sleep(25));
      }
  }));

  var textAnimate = eval(Jscex.compile("async", function () {
      var together = new Date();
      together.setFullYear(2010, 3,1); 			//时间年月日
      together.setHours(16);						//小时	
      together.setMinutes(53);					//分钟
      together.setSeconds(0);					//秒前一位
      together.setMilliseconds(2);				//秒第二位

      $("#code").show().typewriter();
      $("#clock-box").fadeIn(500);
      while (true) {
          timeElapse(together);
          $await(Jscex.Async.sleep(1000));
      }
  }));

  var runAsync = eval(Jscex.compile("async", function () {
      $await(seedAnimate());
      $await(growAnimate());
      $await(flowAnimate());
      $await(moveAnimate());

      textAnimate().start();

      $await(jumpAnimate());
  }));

  runAsync().start();
})();